Description
Product Introduction & Engineering Value
When a legacy machine starts losing positioning accuracy, the drive is often the first component worth checking—especially when the controller continues generating valid step and direction commands. The Pacific Scientific 6410-001-C-N-N is a compact microstepping drive for two-phase stepper motors, accepting a 24–75 VDC supply and providing adjustable motor current up to 5 A RMS.
This model belongs to the older 6410 motion-control platform now commonly associated with Pacific Scientific/Kollmorgen. For replacement work, the exact option code matters: this version includes a cover but does not include the heat sink or connector kit.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 6410-001-C-N-N |
| Drive Family | Pacific Scientific 6410 Series |
| Drive Type | Microstepping / stepper drive module |
| Motor Type | Two-phase hybrid stepper motor |
| DC Input Voltage | 24–75 VDC |
| Output Current | 0.625–5 A RMS adjustable |
| Peak Phase Current | 7.1 A peak |
| Default Current | 5 A RMS |
| Chopper Design | 4-phase bipolar chopper |
| Chopper Frequency | 20 kHz |
| Maximum Step Rate | Up to 2 MHz with filter out |
| Cover | Included |
| Heat Sink | Not included |
| Connector Kit | Not included |
| Dimensions | Approximately 5.00 H × 4.30 D × 1.50 W in. |
| Operating Temperature | 0–50°C reported by current distributor documentation |
The 24–75 VDC input range, 5 A RMS rating, 7.1 A peak capability, 20 kHz chopper frequency, and compact dimensions are consistently reported across multiple technical listings.
The manufacturer’s option structure is worth preserving when ordering a replacement. A 6410-001-C-N-K, for example, is a different configuration because it includes the connector kit, while 6410-001-C-H-N adds a heat sink.
Field Application & the “Trench” Experience
Picture an older automated indexing station where the PLC continues issuing step pulses, but the rotary table begins stalling during acceleration. The motor itself checks out, and the controller’s pulse output looks normal on an oscilloscope. The maintenance team eventually traces the problem to the aging microstepping drive.
A 6410-001-C-N-N can be used as the replacement drive when the machine’s existing motor, supply voltage, command interface, current configuration, and mechanical load are compatible. The critical step is not simply matching the part number—it is confirming the motor current setting and thermal arrangement before returning the axis to production.
Typical applications include:
- Precision indexing tables — rotary positioning for assembly and inspection equipment.
- Pick-and-place mechanisms — controlled incremental movement of linear or rotary axes.
- Material-feed systems — synchronized stepper positioning in packaging or automated processing equipment.
- Legacy CNC and machine-tool subsystems — replacement of obsolete 6410-series motion hardware.
The 6410 family is specifically described as converting step-and-direction inputs into winding currents for two-phase stepper motors.
Transparency SOP: QA & Testing
For New Surplus or refurbished inventory, the testing sequence should focus on the drive rather than relying on a visual inspection alone.
1. Identity check
Verify 6410-001-C-N-N, manufacturer markings, option code, and serial/date information where available.
2. Physical inspection
Inspect the cover, PCB, terminals, connector positions, mounting points, and signs of overheating or previous component replacement.
3. Power test
Apply an appropriate DC supply within the documented 24–75 VDC range and verify normal startup behavior.
4. Command test
Apply controlled step/direction signals and verify that the drive responds correctly without abnormal current behavior.
5. Load test
Where suitable test equipment is available, connect a representative two-phase stepper motor and verify current regulation and directional operation.
6. Final verification
Record the tested current setting, supply voltage, motor/load used for testing, and observed operating condition.
This is particularly important for used inventory. Current marketplace listings show both tested used units and units offered for repair, so the condition of an individual unit should never be inferred solely from the part number.
6410-001-C-N-N
6410-001-C-N-N
6410-001-C-N-N
The Veteran’s Tech Trap Guide
⚠️ Trap #1 — Forgetting that this version has no heat sink
The second option N in 6410-001-C-N-N identifies the no-heat-sink configuration. Do not assume a heat sink is included because another 6410 variant may have one. Kollmorgen’s option listing explicitly distinguishes the H and N versions.
PRO TIP: If the existing installation uses a separately mounted thermal solution, photograph it before replacing the drive. Do not redesign the thermal arrangement during an emergency replacement unless the heat-load calculation has been checked.
⚠️ Trap #2 — Setting current by habit
The drive can provide up to 5 A RMS, but that does not mean every connected motor should be operated at 5 A. The motor’s rated phase current and the machine’s existing configuration should determine the setting. The 6410 supports adjustable output current from approximately 0.625 to 5 A RMS.
⚠️ Trap #3 — Ordering the wrong suffix
6410-001-C-N-N and 6410-001-C-N-K are not identical configurations. The latter includes a connector kit. Likewise, the H variants include a heat sink. Verify the entire ordering code before issuing a purchase order.
Dynamic FAQ
What is the Pacific Scientific 6410-001-C-N-N?
It is a 6410 Series microstepping drive module designed to control two-phase hybrid stepper motors from step-and-direction commands.
What is the input voltage?
The specified DC input range is 24 to 75 VDC. The motor output voltage follows the available DC supply, subject to the drive’s operating characteristics.
What is the maximum motor current?
The drive is rated for 5 A RMS, with 7.1 A peak capability in microstepping operation. The output current is adjustable rather than fixed at the maximum value.
Does 6410-001-C-N-N include a heat sink?
No. The N heat-sink option means no heat sink. The C specifies the cover. It also has no connector kit according to the published option structure.
Is this part obsolete?
Yes. Current distributor and repair references identify the 6410-001-C-N-N as a discontinued/legacy product, although surplus, tested used, and refurbished inventory can still be available.
Can I buy it as New Surplus?
Potentially. Availability changes with remaining inventory. A New Surplus unit should be supplied as unused original hardware and should be distinguished from tested used or refurbished stock. Obtain photographs of the actual unit and its identification label before purchase.
What warranty is available?
Warranty depends on the supplier and condition. For example, one current listing reports a one-year warranty with a 30-day return guarantee for a tested used unit, while other suppliers offer their own terms. For New Surplus procurement, confirm the warranty period and return conditions on the quotation.
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